Unloading device.



No. 804,762. PATENTED NOV. 14, 1905. C. E. OTTERMAN.

UNLOADING DEVICE.

APPLICATION FILED FEB. 21, 1905' FIG-.2.

6i biannual, I

UNTTED STATES CHARLES E. OTTERMAN, OF TOLEDO, IOl/VA.

UNLOADING DEVICE.

Specification of Letters Patent.

Patented Nov. 14, 1905.

Application filed February 21, 1905. Serial No. 246.696.

T0 aZZ whmn it may concern:

Be it known that I, CHARLES E. OTTERMAN, a citizen of the United States,residing at Toledo, in the county of Tama and State of Iowa, haveinvented certain new and useful Improvementsin Unloading Devices, ofwhich the following is a specification.

My invention relates to unloading devices, and especially to devices forunloading lumber and like material from a car.

The object of my invention is to provide an improvement on my unloadingdevice forming the subject-matter of an application for Letters Patentof the United States, filed December 27, 1904, and bearing Serial N 0.237,839.

A further object of my invention is to provide an unloadingdevicewherein the rollers are provided with antifriction-bearings.

A further object of my invention is to pro vide an unloading devicewherein the rollers are mounted upon brackets curved outwardly toprevent the turning of the roller obliquely to the article carriedthereon.

With these and other objects in view the present invention consists inthe combination and arrangement of parts, as will be hereinafter morefully described, shown in the accompanying drawings, and particularlypointed out in the appended claims, it being understood that changes inthe form, proportion, size, and minor details may be made within thescope of the claims without departing from the spirit or sacrificing anyof the advantages of the invention.

In the drawings, Figure 1 is a view of my improved unloading device infront elevation secured to a car and in operative position. Fig. 2 is avertical sectional view of my improved unloading device, taken on line 22 of' Fig. 1. Fig. 3 is a vertical sectional view in detail, taken online 3 3 of Fig. 1, and

showing the antifriction-bearihgs upon which the rollers are mounted.Fig. 4 is a vertical sectional view in detail, taken on line 4 4 of Fig.1, and showing the ball-bearing swivel of the yoke in section.

Like characters of reference designate corresponding parts throughoutthe several views.

In its preferred embodiment my improved unloading device comprises theupright adjustable frame-pieces 1, with the hooks 2 and bearing-plates3, as described in my former application, Serial No. 237,839. The frameis secured to a car, as described in said application, by the hook 2engaging the upper jamb, the bearing-plate 3 contacting with the side ofthe car, and held in position by the hook 4 engaging the rail 5 and heldin operative position by the spring 6. To the uprights of the frame 1are secured the guide-rods 7, with the cross-bar 8 vertically slidablethereon. A shaft 9 is mounted in suitable bearings 10 adjacent the upperend of the upright frame 1 and provided at each of its ends with thewinding-drums 11. Flexible cables 12 are secured to rings 13, in theopposite ends of cross-bar 8, and wound about Winding-drums 11. Theshaft 9 is provided with a crank 14, capable of rotating the said shaft9 and drums 11, to wind the cable 12 about the said drums. The shaft 9is provided with ratchets 15, and pawls 16 are disposed for engagementtherewith and to prevent a retrograde movement of the drums 11. To holdthe side bars of the upright frame in proper alineinent, a brace 17 isdisposed between the said bars and rigidly secured thereto at itsopposite ends.

Upon the cross-bar 8 is disposed a member 19, provided with a ball-race.A yoke 20, also provided with a ball-race at its central point, ispivotally secured, registering with the member 19 and the balls 21,disposed within the registering ball-races. The yoke 20 is provided withforwardly-extending bracket portions 22, upon the outer ends of whichare carried sleeves 23. The sleeve 23 constitutes a casing for therollers 24, providing an antifriction-bearing for the trunnion 25 of thework-roller 26. Upon the sleeve 23 are also mounted thevertically-disposed rollers 27,

held in yokes 28, preferably formed integral with the sleeve 23.

I have shown and prefer to mount two rollers 26 upon the cross-bar 8differing in length, the longer one designed to be used for unloadingwide lumber and timber of large dimensions, the shorter to be used fortimbers of smaller dimensions, or it may be used for unloading widelumber by placing the edge of the lumber in contact with the roller.

The operation of my improved unloading device is as follows: With theframe secured to a car, as shown in the drawings, the crossbar 8, withthe rollers 26, may be vertically adjusted to the desired position bythe rotation of the winding-drums 11, operated by the crank 14, the bar8 moving vertically upon the guide-rods 7. The desired verticaladjustment being attained, one end of a piece of lumber is placed uponeither one of the rollers 26 according to size and moved longitudinallythereon, the roller maintaining at all times a position perpendicular toa stick of timber by reason of the forwardly-curved bracket portion 22and prevented from sliding ofi the roller by reason ofvertically-disposed rollers 27.

Having thus described my invention, What I claim, and desire to secureby Letters Patent, is

1. In a device of the character described, a frame provided with meansfor securing it to a car-door, a bar secured to said frame andvertically adjustable thereon, a bracket swivelly mounted thereon andcurved to extend forward and a roller mounted on said bracket.

2. In a device of the character described, a frame provided with hooksto engage the jambs of and be secured adjacent to a car-door, ahorizontal cross-bar, means for slidingly securing the cross-bar to theframe, means for securing the cross-bar at a desired verticaladjustment, a long roller and a short roller provided withroller-bearings and mounted each in a bracket properly proportioned, thesaid brackets swivelly mounted upon the crossbar and curved to extendand hold the rollers I across the door and longitudinally of the car,

means for securing the cross-bar to the uprights of the frame to permitvertical movement of the bar, drums rotatably mounted adjacent the topof the frame, means for rotating the drums, cables adapted to be woundon said drums and connected to the cross-bar, a plurality of bracketsswivelly mounted on said cross-bar and on ball-bearings, the saidbrackets curved to extend away from said car, a horizontal rollermounted in each of said brackets and in roller-bearings and a verticalroller mounted at each end of each bracket.

In testimony whereof I affix my signature in presence of two Witnesses.

' CHARLES E. OTTERMAN.

Witnesses:

J. G. BULL, MARTHA HUTGHISON.

